Commit bfa0e332 authored by Titus von Koeller's avatar Titus von Koeller
Browse files

ran black and isort for coherent code formatting

parent 597a8521
# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the MIT license found in the
# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the MIT license found in the
# LICENSE file in the root directory of this source tree.
from .nn import modules
from .autograd._functions import mm_cublas, bmm_cublas, matmul_cublas, matmul, MatmulLtState
from .autograd._functions import (MatmulLtState, bmm_cublas, matmul,
matmul_cublas, mm_cublas)
from .cextension import COMPILED_WITH_CUDA
from .nn import modules
if COMPILED_WITH_CUDA:
from .optim import adam
__pdoc__ = {'libbitsandbytes': False,
'optim.optimizer.Optimizer8bit': False,
'optim.optimizer.MockArgs': False
}
__pdoc__ = {
"libbitsandbytes": False,
"optim.optimizer.Optimizer8bit": False,
"optim.optimizer.MockArgs": False,
}
from dataclasses import dataclass
import torch
import bitsandbytes as bnb
import bitsandbytes.functional as F
from dataclasses import dataclass
tensor = torch.Tensor
'''
"""
This class pools outlier dimensions across layers.
This is particularly important for small models where outlier features
are less systematic and occur with low frequency.
'''
"""
class GlobalOutlierPooler(object):
_instance = None
def __init__(self):
raise RuntimeError('Call get_instance() instead')
raise RuntimeError("Call get_instance() instead")
def initialize(self):
self.outliers = set()
......@@ -29,25 +32,29 @@ class GlobalOutlierPooler(object):
return cls._instance
def add_outliers(self, outlier_idx, feature_dim):
if self.model_dim is None: self.model_dim = feature_dim
if feature_dim != self.model_dim: return # we do not encode outliers for the 2nd FFN layer
if self.model_dim is None:
self.model_dim = feature_dim
if feature_dim != self.model_dim:
return # we do not encode outliers for the 2nd FFN layer
self.outliers.update(outlier_idx.tolist())
def get_current_outlier_idx(self):
return torch.Tensor(list(self.outliers)).to(torch.int64)
class MatMul8bit(torch.autograd.Function):
class MatMul8bit(torch.autograd.Function):
@staticmethod
def forward(ctx, A, B, out=None, quant_type='vector', precision=[8, 8, 8]):
def forward(ctx, A, B, out=None, quant_type="vector", precision=[8, 8, 8]):
if precision[0] != 8:
with torch.no_grad():
output = torch.matmul(A, B)
else:
if len(B.shape) == 2: dim = 0
else: dim = 1
if len(B.shape) == 2:
dim = 0
else:
dim = 1
qA, SA = F.vectorwise_quant(A, dim=-1, quant_type=quant_type)
qB, SB = F.vectorwise_quant(B, dim=dim, quant_type=quant_type)
iout = F.igemm(qA, qB)
......@@ -84,21 +91,41 @@ class MatMul8bit(torch.autograd.Function):
else:
if len(B.shape) == 2 and len(A.shape) == 3:
grad_output = grad_output.contiguous()
if not grad_output.is_contiguous(): grad_output.contiguous()
qgrad_output, S1 = F.vectorwise_quant(grad_output.view(-1, grad_output.shape[2]), dim=0, quant_type=quant_type)
if not A.is_contiguous(): A = A.contiguous()
qA, S2 = F.vectorwise_quant(A.view(-1, A.shape[2]), dim=0, quant_type=quant_type)
if not grad_output.is_contiguous():
grad_output.contiguous()
qgrad_output, S1 = F.vectorwise_quant(
grad_output.view(-1, grad_output.shape[2]),
dim=0,
quant_type=quant_type,
)
if not A.is_contiguous():
A = A.contiguous()
qA, S2 = F.vectorwise_quant(
A.view(-1, A.shape[2]), dim=0, quant_type=quant_type
)
igrad_B = F.igemm(qA.t(), qgrad_output)
grad_B = F.vectorwise_mm_dequant(igrad_B, S2.t(), S1, grad_output.dtype, quant_type)
grad_B = F.vectorwise_mm_dequant(
igrad_B, S2.t(), S1, grad_output.dtype, quant_type
)
else:
qgrad_output, S1 = F.vectorwise_quant(grad_output, dim=dims, quant_type=quant_type)
qgrad_output, S1 = F.vectorwise_quant(
grad_output, dim=dims, quant_type=quant_type
)
qA, S2 = F.vectorwise_quant(A, dim=dims, quant_type=quant_type)
igrad_B = F.igemm(qA.permute(permute_dim), qgrad_output)
grad_B = F.vectorwise_mm_dequant(igrad_B, S2.permute(permute_dim), S1, grad_output.dtype, quant_type)
grad_B = F.vectorwise_mm_dequant(
igrad_B,
S2.permute(permute_dim),
S1,
grad_output.dtype,
quant_type,
)
if A.requires_grad:
if len(grad_output.shape) == 3: dims = [2]
else: dims = [1]
if len(grad_output.shape) == 3:
dims = [2]
else:
dims = [1]
if len(B.shape) == 3:
# bio -> boi
......@@ -113,10 +140,14 @@ class MatMul8bit(torch.autograd.Function):
with torch.no_grad():
grad_A = torch.matmul(grad_output, B.permute(permute_dim))
else:
qgrad_output, S1 = F.vectorwise_quant(grad_output, dim=dims, quant_type=quant_type)
qgrad_output, S1 = F.vectorwise_quant(
grad_output, dim=dims, quant_type=quant_type
)
qB, S3 = F.vectorwise_quant(B, dim=dim_B, quant_type=quant_type)
igrad_A = F.igemm(qgrad_output, qB.permute(permute_dim))
grad_A = F.vectorwise_mm_dequant(igrad_A, S1, S3.permute(permute_dim), grad_output.dtype, quant_type)
grad_A = F.vectorwise_mm_dequant(
igrad_A, S1, S3.permute(permute_dim), grad_output.dtype, quant_type
)
return grad_A, grad_B, None, None, None
......@@ -125,6 +156,7 @@ mm_cublas = MatMul8bit.apply
bmm_cublas = MatMul8bit.apply
matmul_cublas = MatMul8bit.apply
@dataclass
class MatmulLtState:
CB = None
......@@ -159,7 +191,6 @@ class MatmulLtState:
class MatMul8bitLt(torch.autograd.Function):
@staticmethod
def forward(ctx, A, B, out=None, state=MatmulLtState()):
# 1. Quantize A
......@@ -171,11 +202,15 @@ class MatMul8bitLt(torch.autograd.Function):
requires_gradB = B.requires_grad
formatB = state.formatB
input_shape = A.shape
if state.outlier_pool is None: state.outlier_pool = GlobalOutlierPooler.get_instance()
assert A.dtype == torch.float16, f'The input data type needs to be fp16 but {A.dtype} was found!'
if state.outlier_pool is None:
state.outlier_pool = GlobalOutlierPooler.get_instance()
assert (
A.dtype == torch.float16
), f"The input data type needs to be fp16 but {A.dtype} was found!"
# 1. Quantize A
if len(A.shape) == 3: A = A.view(-1, A.shape[-1]).contiguous()
if len(A.shape) == 3:
A = A.view(-1, A.shape[-1]).contiguous()
CA, CAt, SCA, SCAt, coo_tensorA = F.double_quant(A, threshold=state.threshold)
if state.threshold > 0.0 and coo_tensorA is not None:
......@@ -191,8 +226,8 @@ class MatMul8bitLt(torch.autograd.Function):
# B in in 8-bit row-major, we can transform it back to 16-bit to extract outlier dimensions
# we also need to convert it to the turing/ampere format
state.CxB, state.SB = F.transform(state.CB, to_order=formatB)
#state.B = (state.CB.float()*(state.SCB.view(-1, 1)/127)).half()
#if state.threshold > 0.0 and coo_tensorA is not None and state.idx is None and state.CB is not None:
# state.B = (state.CB.float()*(state.SCB.view(-1, 1)/127)).half()
# if state.threshold > 0.0 and coo_tensorA is not None and state.idx is None and state.CB is not None:
# # generate outlier index and subB
# outlier_idx = torch.unique(coo_tensorA.colidx).long()
# state.outlier_pool.add_outliers(outlier_idx, A.shape[-1])
......@@ -203,24 +238,24 @@ class MatMul8bitLt(torch.autograd.Function):
# state.idx = outlier_idx
# state.subB = (state.CB[:, state.idx].float().t().contiguous()*(state.SCB/127)).half()
#if state.idx is not None:
# if state.idx is not None:
# # extract outliers
# CA[:, state.idx] = 0
# CAt[:, state.idx] = 0
# subA = A[:, state.idx]
#else:
# else:
# subA = None
else:
if not state.has_fp16_weights and state.CxB is None:
state.CxB, state.SB = F.transform(state.CB, to_order=formatB)
subA = None
# 2. Quantize B
if state.has_fp16_weights:
has_grad = (True if (getattr(B, 'grad', None) is not None) else False)
has_grad = True if (getattr(B, "grad", None) is not None) else False
is_transposed = not B.is_contiguous() and B.shape[0] == B.stride(1)
if is_transposed: B = B.contiguous()
if is_transposed:
B = B.contiguous()
if (state.is_training and not has_grad) or state.CxB is None:
state.reset_grads()
......@@ -234,14 +269,16 @@ class MatMul8bitLt(torch.autograd.Function):
outlier_idx = torch.unique(coo_tensorA.colidx)
state.idx = outlier_idx
#state.outlier_pool.add_outliers(outlier_idx, A.shape[-1])
#if state.use_pool and state.outlier_pool.model_dim == A.shape[-1]:
# state.outlier_pool.add_outliers(outlier_idx, A.shape[-1])
# if state.use_pool and state.outlier_pool.model_dim == A.shape[-1]:
# # do not use pool for 2nd FFN layer
# state.idx = state.outlier_pool.get_current_outlier_idx().to(A.device)
#else:
# else:
# state.idx = outlier_idx
outliers = F.extract_outliers(state.CxB, state.SB, state.idx.int())
state.subB = (outliers*state.SCB.view(-1, 1)/127.0).t().contiguous().half()
state.subB = (
(outliers * state.SCB.view(-1, 1) / 127.0).t().contiguous().half()
)
CA[:, state.idx.long()] = 0
CAt[:, state.idx.long()] = 0
subA = A[:, state.idx.long()]
......@@ -254,7 +291,7 @@ class MatMul8bitLt(torch.autograd.Function):
output_shape = (input_shape[0], shapeB[0])
# 3. Matmul
C32A, SA = F.transform(CA, 'col32')
C32A, SA = F.transform(CA, "col32")
out32, Sout32 = F.igemmlt(C32A, state.CxB, SA, state.SB)
output = F.mm_dequant(out32, Sout32, SCA, state.SCB)
......@@ -277,7 +314,7 @@ class MatMul8bitLt(torch.autograd.Function):
ctx.tensor_states = (None, None)
ctx.save_for_backward(None, None)
#clone_func = torch.clone if len(output_shape) == 3 else lambda x : x
# clone_func = torch.clone if len(output_shape) == 3 else lambda x : x
clone_func = torch.clone
return clone_func(output.view(output_shape))
......@@ -288,7 +325,7 @@ class MatMul8bitLt(torch.autograd.Function):
SCAt, idx = ctx.tensor_states
formatB = ctx.formatB
state = ctx.state
assert state.has_fp16_weights, 'Backprop only supported for fp16 weights.'
assert state.has_fp16_weights, "Backprop only supported for fp16 weights."
if len(grad_output.shape) == 3:
grad_output = grad_output.view(-1, grad_output.shape[-1]).contiguous()
......@@ -298,18 +335,22 @@ class MatMul8bitLt(torch.autograd.Function):
Cgrad, Cgradt, SCgrad, SCgradt, coo_tensor = F.double_quant(grad_output)
if req_gradB:
CxAt, SAt = F.transform(CAt, formatB, transpose=True)
C32grad, Sgrad = F.transform(Cgradt, 'col32', transpose=True)
C32grad, Sgrad = F.transform(Cgradt, "col32", transpose=True)
gradB32, SgradB32 = F.igemmlt(C32grad, CxAt, Sgrad, SAt)
grad_B = F.mm_dequant(gradB32, SgradB32, SCgradt, SCAt)
if state.threshold > 0.0 and subA is not None:
grad_B[:, idx] += torch.matmul(grad_output.t(), subA)
if req_gradA:
C32grad, Sgrad = F.transform(Cgrad, 'col32')
C32grad, Sgrad = F.transform(Cgrad, "col32")
if state.CxBt is None:
state.CxBt, state.SBt = F.transform(state.CBt, to_order=formatB, transpose=True)
state.CxBt, state.SBt = F.transform(
state.CBt, to_order=formatB, transpose=True
)
gradA32, SgradA32 = F.igemmlt(C32grad, state.CxBt, Sgrad, state.SBt)
grad_A = F.mm_dequant(gradA32, SgradA32, SCgrad, state.SCBt).view(ctx.grad_shape)
grad_A = F.mm_dequant(gradA32, SgradA32, SCgrad, state.SCBt).view(
ctx.grad_shape
)
return grad_A, grad_B, None, None, None, None, None
......@@ -317,9 +358,10 @@ class MatMul8bitLt(torch.autograd.Function):
matmul = MatMul8bitLt.apply
def matmul(A : tensor, B : tensor, out : tensor=None, state : MatmulLtState = None, threshold=0.0):
def matmul(
A: tensor, B: tensor, out: tensor = None, state: MatmulLtState = None, threshold=0.0
):
state = state or MatmulLtState()
if threshold > 0.0:
state.threshold = threshold
return MatMul8bitLt.apply(A, B, out, state)
import ctypes as ct
import os
from warnings import warn
from bitsandbytes.cuda_setup import evaluate_cuda_setup
......@@ -8,17 +9,21 @@ class CUDALibrary_Singleton(object):
_instance = None
def __init__(self):
raise RuntimeError('Call get_instance() instead')
raise RuntimeError("Call get_instance() instead")
def initialize(self):
self.context = {}
binary_name = evaluate_cuda_setup()
if not os.path.exists(os.path.dirname(__file__) + f'/{binary_name}'):
print(f'TODO: compile library for specific version: {binary_name}')
print('defaulting to libbitsandbytes.so')
self.lib = ct.cdll.LoadLibrary(os.path.dirname(__file__) + '/libbitsandbytes.so')
if not os.path.exists(os.path.dirname(__file__) + f"/{binary_name}"):
print(f"TODO: compile library for specific version: {binary_name}")
print("defaulting to libbitsandbytes.so")
self.lib = ct.cdll.LoadLibrary(
os.path.dirname(__file__) + "/libbitsandbytes.so"
)
else:
self.lib = ct.cdll.LoadLibrary(os.path.dirname(__file__) + f'/{binary_name}')
self.lib = ct.cdll.LoadLibrary(
os.path.dirname(__file__) + f"/{binary_name}"
)
@classmethod
def get_instance(cls):
......@@ -35,6 +40,8 @@ try:
lib.get_cusparse.restype = ct.c_void_p
COMPILED_WITH_CUDA = True
except AttributeError:
warn("The installed version of bitsandbytes was compiled without GPU support. "
"8-bit optimizers and GPU quantization are unavailable.")
warn(
"The installed version of bitsandbytes was compiled without GPU support. "
"8-bit optimizers and GPU quantization are unavailable."
)
COMPILED_WITH_CUDA = False
......@@ -18,31 +18,36 @@ evaluation:
- based on that set the default path
"""
import ctypes
import shlex
import subprocess
from os import environ as env
from pathlib import Path
from typing import Set, Union
from .utils import warn_of_missing_prerequisite, print_err
import ctypes
import shlex
import subprocess
from .utils import print_err, warn_of_missing_prerequisite
def execute_and_return(strCMD):
proc = subprocess.Popen(shlex.split(strCMD), stdout=subprocess.PIPE, stderr=subprocess.PIPE)
proc = subprocess.Popen(
shlex.split(strCMD), stdout=subprocess.PIPE, stderr=subprocess.PIPE
)
out, err = proc.communicate()
out, err = out.decode("UTF-8").strip(), err.decode("UTF-8").strip()
return out, err
def check_cuda_result(cuda, result_val):
if result_val != 0:
cuda.cuGetErrorString(result_val, ctypes.byref(error_str))
print(f"Count not initialize CUDA - failure!")
raise Exception('CUDA exception!')
raise Exception("CUDA exception!")
return result_val
# taken from https://gist.github.com/f0k/63a664160d016a491b2cbea15913d549
def get_compute_capability():
libnames = ('libcuda.so', 'libcuda.dylib', 'cuda.dll')
libnames = ("libcuda.so", "libcuda.dylib", "cuda.dll")
for libname in libnames:
try:
cuda = ctypes.CDLL(libname)
......@@ -51,8 +56,7 @@ def get_compute_capability():
else:
break
else:
raise OSError("could not load any of: " + ' '.join(libnames))
raise OSError("could not load any of: " + " ".join(libnames))
nGpus = ctypes.c_int()
cc_major = ctypes.c_int()
......@@ -69,39 +73,43 @@ def get_compute_capability():
ccs = []
for i in range(nGpus.value):
result = check_cuda_result(cuda, cuda.cuDeviceGet(ctypes.byref(device), i))
result = check_cuda_result(cuda, cuda.cuDeviceComputeCapability(ctypes.byref(cc_major), ctypes.byref(cc_minor), device))
ccs.append(f'{cc_major.value}.{cc_minor.value}')
result = check_cuda_result(
cuda,
cuda.cuDeviceComputeCapability(
ctypes.byref(cc_major), ctypes.byref(cc_minor), device
),
)
ccs.append(f"{cc_major.value}.{cc_minor.value}")
#TODO: handle different compute capabilities; for now, take the max
# TODO: handle different compute capabilities; for now, take the max
ccs.sort()
return ccs[-1]
# return ccs[-1]
return ccs
CUDA_RUNTIME_LIB: str = "libcudart.so"
def tokenize_paths(paths: str) -> Set[Path]:
return {
Path(ld_path) for ld_path in paths.split(':')
if ld_path
}
return {Path(ld_path) for ld_path in paths.split(":") if ld_path}
def get_cuda_runtime_lib_path(
# TODO: replace this with logic for all paths in env vars
LD_LIBRARY_PATH: Union[str, None] = env.get("LD_LIBRARY_PATH")
) -> Union[Path, None]:
""" # TODO: add doc-string
"""
"""# TODO: add doc-string"""
if not LD_LIBRARY_PATH:
warn_of_missing_prerequisite(
'LD_LIBRARY_PATH is completely missing from environment!'
"LD_LIBRARY_PATH is completely missing from environment!"
)
return None
ld_library_paths: Set[Path] = tokenize_paths(LD_LIBRARY_PATH)
non_existent_directories: Set[Path] = {
path for path in ld_library_paths
if not path.exists()
non_existent_directories: Set[Path] = {
path for path in ld_library_paths if not path.exists()
}
if non_existent_directories:
......@@ -111,7 +119,8 @@ def get_cuda_runtime_lib_path(
)
cuda_runtime_libs: Set[Path] = {
path / CUDA_RUNTIME_LIB for path in ld_library_paths
path / CUDA_RUNTIME_LIB
for path in ld_library_paths
if (path / CUDA_RUNTIME_LIB).is_file()
} - non_existent_directories
......@@ -126,26 +135,31 @@ def get_cuda_runtime_lib_path(
single_cuda_runtime_lib_dir = next(iter(cuda_runtime_libs))
return single_cuda_runtime_lib_dir
def evaluate_cuda_setup():
cuda_path = get_cuda_runtime_lib_path()
cc = get_compute_capability()
binary_name = 'libbitsandbytes_cpu.so'
binary_name = "libbitsandbytes_cpu.so"
if not (has_gpu := bool(cc)):
print('WARNING: No GPU detected! Check our CUDA paths. Processing to load CPU-only library...')
print(
"WARNING: No GPU detected! Check our CUDA paths. Processing to load CPU-only library..."
)
return binary_name
has_cublaslt = cc in ['7.5', '8.0', '8.6']
has_cublaslt = cc in ["7.5", "8.0", "8.6"]
# TODO:
# TODO:
# (1) Model missing cases (no CUDA installed by CUDA driver (nvidia-smi accessible)
# (2) Multiple CUDA versions installed
cuda_home = str(Path(cuda_path).parent.parent)
ls_output, err = execute_and_return(f'{cuda_home}/bin/nvcc --version')
cuda_version = ls_output.split('\n')[3].split(',')[-1].strip().lower().replace('v', '')
major, minor, revision = cuda_version.split('.')
cuda_version_string = f'{major}{minor}'
ls_output, err = execute_and_return(f"{cuda_home}/bin/nvcc --version")
cuda_version = (
ls_output.split("\n")[3].split(",")[-1].strip().lower().replace("v", "")
)
major, minor, revision = cuda_version.split(".")
cuda_version_string = f"{major}{minor}"
binary_name = f'libbitsandbytes_cuda{cuda_version_string}_{("cublaslt" if has_cublaslt else "")}.so'
......
import typer
cli = typer.Typer()
......
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# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the MIT license found in the
# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the MIT license found in the
# LICENSE file in the root directory of this source tree.
from .modules import StableEmbedding, Linear8bit, Linear8bitLt, Int8Params
from .modules import Int8Params, Linear8bit, Linear8bitLt, StableEmbedding
# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the MIT license found in the
# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the MIT license found in the
# LICENSE file in the root directory of this source tree.
import torch
import bitsandbytes as bnb
from typing import (Any, Callable, Dict, Iterator, Mapping, Optional, Set,
Tuple, TypeVar, Union, overload)
from typing import Union, Tuple, Any, Callable, Iterator, Set, Optional, overload, TypeVar, Mapping, Dict
from torch import Tensor, device, dtype
from torch import nn
from torch.nn.parameter import Parameter
import torch
import torch.nn.functional as F
from torch import Tensor, device, dtype, nn
from torch.nn.parameter import Parameter
import bitsandbytes as bnb
from bitsandbytes.optim import GlobalOptimManager
T = TypeVar('T', bound='torch.nn.Module')
T = TypeVar("T", bound="torch.nn.Module")
class StableEmbedding(torch.nn.Embedding):
def __init__(self, num_embeddings: int, embedding_dim: int, padding_idx: Optional[int] = None,
max_norm: Optional[float] = None, norm_type: float = 2., scale_grad_by_freq: bool = False,
sparse: bool = False, _weight: Optional[Tensor] = None) -> None:
super(StableEmbedding, self).__init__(num_embeddings, embedding_dim, padding_idx, max_norm, norm_type, scale_grad_by_freq, sparse, _weight)
def __init__(
self,
num_embeddings: int,
embedding_dim: int,
padding_idx: Optional[int] = None,
max_norm: Optional[float] = None,
norm_type: float = 2.0,
scale_grad_by_freq: bool = False,
sparse: bool = False,
_weight: Optional[Tensor] = None,
) -> None:
super(StableEmbedding, self).__init__(
num_embeddings,
embedding_dim,
padding_idx,
max_norm,
norm_type,
scale_grad_by_freq,
sparse,
_weight,
)
self.norm = torch.nn.LayerNorm(embedding_dim)
GlobalOptimManager.get_instance().register_module_override(self, 'weight', {'optim_bits': 32})
GlobalOptimManager.get_instance().register_module_override(
self, "weight", {"optim_bits": 32}
)
def reset_parameters(self) -> None:
torch.nn.init.xavier_uniform_(self.weight)
self._fill_padding_idx_with_zero()
''' !!! This is a redefinition of _fill_padding_idx_with_zero in torch.nn.Embedding
""" !!! This is a redefinition of _fill_padding_idx_with_zero in torch.nn.Embedding
to make the Layer compatible with Pytorch < 1.9.
This means that if this changes in future PyTorch releases this need to change too
which is cumbersome. However, with this we can ensure compatibility with previous
PyTorch releases.
'''
"""
def _fill_padding_idx_with_zero(self) -> None:
if self.padding_idx is not None:
with torch.no_grad():
......@@ -41,29 +61,55 @@ class StableEmbedding(torch.nn.Embedding):
def forward(self, input: Tensor) -> Tensor:
emb = F.embedding(
input, self.weight, self.padding_idx, self.max_norm,
self.norm_type, self.scale_grad_by_freq, self.sparse)
input,
self.weight,
self.padding_idx,
self.max_norm,
self.norm_type,
self.scale_grad_by_freq,
self.sparse,
)
return self.norm(emb)
class Embedding(torch.nn.Embedding):
def __init__(self, num_embeddings: int, embedding_dim: int, padding_idx: Optional[int] = None,
max_norm: Optional[float] = None, norm_type: float = 2., scale_grad_by_freq: bool = False,
sparse: bool = False, _weight: Optional[Tensor] = None) -> None:
super(Embedding, self).__init__(num_embeddings, embedding_dim, padding_idx, max_norm, norm_type, scale_grad_by_freq, sparse, _weight)
GlobalOptimManager.get_instance().register_module_override(self, 'weight', {'optim_bits': 32})
def __init__(
self,
num_embeddings: int,
embedding_dim: int,
padding_idx: Optional[int] = None,
max_norm: Optional[float] = None,
norm_type: float = 2.0,
scale_grad_by_freq: bool = False,
sparse: bool = False,
_weight: Optional[Tensor] = None,
) -> None:
super(Embedding, self).__init__(
num_embeddings,
embedding_dim,
padding_idx,
max_norm,
norm_type,
scale_grad_by_freq,
sparse,
_weight,
)
GlobalOptimManager.get_instance().register_module_override(
self, "weight", {"optim_bits": 32}
)
def reset_parameters(self) -> None:
torch.nn.init.xavier_uniform_(self.weight)
self._fill_padding_idx_with_zero()
''' !!! This is a redefinition of _fill_padding_idx_with_zero in torch.nn.Embedding
""" !!! This is a redefinition of _fill_padding_idx_with_zero in torch.nn.Embedding
to make the Layer compatible with Pytorch < 1.9.
This means that if this changes in future PyTorch releases this need to change too
which is cumbersome. However, with this we can ensure compatibility with previous
PyTorch releases.
'''
"""
def _fill_padding_idx_with_zero(self) -> None:
if self.padding_idx is not None:
with torch.no_grad():
......@@ -71,13 +117,22 @@ class Embedding(torch.nn.Embedding):
def forward(self, input: Tensor) -> Tensor:
emb = F.embedding(
input, self.weight, self.padding_idx, self.max_norm,
self.norm_type, self.scale_grad_by_freq, self.sparse)
input,
self.weight,
self.padding_idx,
self.max_norm,
self.norm_type,
self.scale_grad_by_freq,
self.sparse,
)
return emb
class Int8Params(torch.nn.Parameter):
def __new__(cls, data=None, requires_grad=True, has_fp16_weights=False, CB=None, SCB=None):
def __new__(
cls, data=None, requires_grad=True, has_fp16_weights=False, CB=None, SCB=None
):
cls.has_fp16_weights = has_fp16_weights
cls.CB = None
cls.SCB = None
......@@ -96,14 +151,18 @@ class Int8Params(torch.nn.Parameter):
del CBt
del SCBt
self.data = CB
setattr(self, 'CB', CB)
setattr(self, 'SCB', SCB)
setattr(self, "CB", CB)
setattr(self, "SCB", SCB)
return self
@overload
def to(self: T, device: Optional[Union[int, device]] = ..., dtype: Optional[Union[dtype, str]] = ...,
non_blocking: bool = ...) -> T:
def to(
self: T,
device: Optional[Union[int, device]] = ...,
dtype: Optional[Union[dtype, str]] = ...,
non_blocking: bool = ...,
) -> T:
...
@overload
......@@ -115,23 +174,41 @@ class Int8Params(torch.nn.Parameter):
...
def to(self, *args, **kwargs):
device, dtype, non_blocking, convert_to_format = torch._C._nn._parse_to(*args, **kwargs)
if device is not None and device.type == 'cuda' and self.data.device.type == 'cpu': return self.cuda(device)
device, dtype, non_blocking, convert_to_format = torch._C._nn._parse_to(
*args, **kwargs
)
if (
device is not None
and device.type == "cuda"
and self.data.device.type == "cpu"
):
return self.cuda(device)
else:
new_param = Int8Params(super().to(device=device, dtype=dtype, non_blocking=non_blocking), requires_grad=self.requires_grad, has_fp16_weights=self.has_fp16_weights)
new_param = Int8Params(
super().to(device=device, dtype=dtype, non_blocking=non_blocking),
requires_grad=self.requires_grad,
has_fp16_weights=self.has_fp16_weights,
)
new_param.CB = self.CB
new_param.SCB = self.SCB
return new_param
class Linear8bitLt(nn.Linear):
def __init__(self, input_features, output_features, bias=True, has_fp16_weights=True, threshold=0.0, index=None):
def __init__(
self,
input_features,
output_features,
bias=True,
has_fp16_weights=True,
threshold=0.0,
index=None,
):
super(Linear8bitLt, self).__init__(input_features, output_features, bias)
self.state = bnb.MatmulLtState()
self.index=index
self.index = index
self.state.threshold = threshold
self.state.has_fp16_weights = has_fp16_weights
......@@ -149,9 +226,10 @@ class Linear8bitLt(nn.Linear):
def forward(self, x):
self.state.is_training = self.training
if self.weight.CB is not None: self.init_8bit_state()
#assert not self.state.has_fp16_weights
#if not self.state.has_fp16_weights: assert self.state.CB is not None or self.state.CxB is not None
if self.weight.CB is not None:
self.init_8bit_state()
# assert not self.state.has_fp16_weights
# if not self.state.has_fp16_weights: assert self.state.CB is not None or self.state.CxB is not None
out = bnb.matmul(x, self.weight, state=self.state)
......@@ -166,8 +244,18 @@ class Linear8bitLt(nn.Linear):
return out
class Linear8bit(nn.Linear):
def __init__(self, input_features, output_features, bias=True, quant_type='vector', index=None, args=None, sparse_decomp=False):
def __init__(
self,
input_features,
output_features,
bias=True,
quant_type="vector",
index=None,
args=None,
sparse_decomp=False,
):
super(Linear8bit, self).__init__(input_features, output_features, bias)
self.quant_type = quant_type
self.index = index
......@@ -178,15 +266,24 @@ class Linear8bit(nn.Linear):
self.iter += 1
if self.iter % self.args.clip_freq == 0:
with torch.no_grad():
maxval, maxidx = torch.topk(torch.abs(self.weight.flatten()), k=self.args.clip_idx)
maxval, maxidx = torch.topk(
torch.abs(self.weight.flatten()), k=self.args.clip_idx
)
if not dist.is_initialized() or dist.get_rank() == 0:
print('clip', maxval[-1].item())
print("clip", maxval[-1].item())
self.weight.clip_(-maxval[-1], maxval[-1])
if self.args is not None:
out = bnb.nn.functional.sparse_decomposed_linear8bit(x, self.weight, self.bias, qval=self.args.sparse_decomp_val, quant_type=self.args.quant_type)
out = bnb.nn.functional.sparse_decomposed_linear8bit(
x,
self.weight,
self.bias,
qval=self.args.sparse_decomp_val,
quant_type=self.args.quant_type,
)
else:
out = bnb.nn.functional.linear8bit(x, self.weight, self.bias, quant_type=self.args.quant_type)
out = bnb.nn.functional.linear8bit(
x, self.weight, self.bias, quant_type=self.args.quant_type
)
return out
# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the MIT license found in the
# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the MIT license found in the
# LICENSE file in the root directory of this source tree.
from bitsandbytes.cextension import COMPILED_WITH_CUDA
......
# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the MIT license found in the
# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the MIT license found in the
# LICENSE file in the root directory of this source tree.
from bitsandbytes.optim.optimizer import Optimizer1State
class Adagrad(Optimizer1State):
def __init__(self, params, lr=1e-2, lr_decay=0, weight_decay=0, initial_accumulator_value=0, eps=1e-10,
optim_bits=32, args=None, min_8bit_size=4096, percentile_clipping=100, block_wise=True):
def __init__(
self,
params,
lr=1e-2,
lr_decay=0,
weight_decay=0,
initial_accumulator_value=0,
eps=1e-10,
optim_bits=32,
args=None,
min_8bit_size=4096,
percentile_clipping=100,
block_wise=True,
):
if not 0.0 <= lr:
raise ValueError("Invalid learning rate: {}".format(lr))
if not 0.0 <= weight_decay:
......@@ -14,15 +27,39 @@ class Adagrad(Optimizer1State):
if not 0.0 <= eps:
raise ValueError("Invalid epsilon value: {}".format(eps))
if initial_accumulator_value != 0.0:
raise ValueError('Initial accumulator value != 0.0 not supported!')
raise ValueError("Initial accumulator value != 0.0 not supported!")
if lr_decay != 0.0:
raise ValueError('Lr Decay != 0.0 not supported!')
super(Adagrad, self).__init__('adagrad', params, lr, (0.0, 0.0), eps,
weight_decay, optim_bits, args, min_8bit_size, percentile_clipping, block_wise)
raise ValueError("Lr Decay != 0.0 not supported!")
super(Adagrad, self).__init__(
"adagrad",
params,
lr,
(0.0, 0.0),
eps,
weight_decay,
optim_bits,
args,
min_8bit_size,
percentile_clipping,
block_wise,
)
class Adagrad8bit(Optimizer1State):
def __init__(self, params, lr=1e-2, lr_decay=0, weight_decay=0, initial_accumulator_value=0, eps=1e-10,
optim_bits=8, args=None, min_8bit_size=4096, percentile_clipping=100, block_wise=True):
def __init__(
self,
params,
lr=1e-2,
lr_decay=0,
weight_decay=0,
initial_accumulator_value=0,
eps=1e-10,
optim_bits=8,
args=None,
min_8bit_size=4096,
percentile_clipping=100,
block_wise=True,
):
if not 0.0 <= lr:
raise ValueError("Invalid learning rate: {}".format(lr))
if not 0.0 <= weight_decay:
......@@ -30,16 +67,40 @@ class Adagrad8bit(Optimizer1State):
if not 0.0 <= eps:
raise ValueError("Invalid epsilon value: {}".format(eps))
if initial_accumulator_value != 0.0:
raise ValueError('Initial accumulator value != 0.0 not supported!')
raise ValueError("Initial accumulator value != 0.0 not supported!")
if lr_decay != 0.0:
raise ValueError('Lr Decay != 0.0 not supported!')
raise ValueError("Lr Decay != 0.0 not supported!")
assert block_wise
super(Adagrad8bit, self).__init__('adagrad', params, lr, (0.0, 0.0), eps,
weight_decay, 8, args, min_8bit_size, percentile_clipping, block_wise)
super(Adagrad8bit, self).__init__(
"adagrad",
params,
lr,
(0.0, 0.0),
eps,
weight_decay,
8,
args,
min_8bit_size,
percentile_clipping,
block_wise,
)
class Adagrad32bit(Optimizer1State):
def __init__(self, params, lr=1e-2, lr_decay=0, weight_decay=0, initial_accumulator_value=0, eps=1e-10,
optim_bits=32, args=None, min_8bit_size=4096, percentile_clipping=100, block_wise=True):
def __init__(
self,
params,
lr=1e-2,
lr_decay=0,
weight_decay=0,
initial_accumulator_value=0,
eps=1e-10,
optim_bits=32,
args=None,
min_8bit_size=4096,
percentile_clipping=100,
block_wise=True,
):
if not 0.0 <= lr:
raise ValueError("Invalid learning rate: {}".format(lr))
if not 0.0 <= weight_decay:
......@@ -47,8 +108,19 @@ class Adagrad32bit(Optimizer1State):
if not 0.0 <= eps:
raise ValueError("Invalid epsilon value: {}".format(eps))
if initial_accumulator_value != 0.0:
raise ValueError('Initial accumulator value != 0.0 not supported!')
raise ValueError("Initial accumulator value != 0.0 not supported!")
if lr_decay != 0.0:
raise ValueError('Lr Decay != 0.0 not supported!')
super(Adagrad32bit, self).__init__('adagrad', params, lr, (0.0, 0.0), eps,
weight_decay, 32, args, min_8bit_size, percentile_clipping, block_wise)
raise ValueError("Lr Decay != 0.0 not supported!")
super(Adagrad32bit, self).__init__(
"adagrad",
params,
lr,
(0.0, 0.0),
eps,
weight_decay,
32,
args,
min_8bit_size,
percentile_clipping,
block_wise,
)
# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the MIT license found in the
# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the MIT license found in the
# LICENSE file in the root directory of this source tree.
import math
......@@ -8,29 +8,97 @@ import os
import torch
import torch.distributed as dist
from bitsandbytes.optim.optimizer import Optimizer2State
import bitsandbytes.functional as F
from bitsandbytes.optim.optimizer import Optimizer2State
class Adam(Optimizer2State):
def __init__(self, params, lr=1e-3, betas=(0.9, 0.999), eps=1e-8,
weight_decay=0, amsgrad=False, optim_bits=32, args=None,
min_8bit_size=4096, percentile_clipping=100, block_wise=True):
super(Adam, self).__init__('adam', params, lr, betas, eps,
weight_decay, optim_bits, args, min_8bit_size, percentile_clipping, block_wise)
def __init__(
self,
params,
lr=1e-3,
betas=(0.9, 0.999),
eps=1e-8,
weight_decay=0,
amsgrad=False,
optim_bits=32,
args=None,
min_8bit_size=4096,
percentile_clipping=100,
block_wise=True,
):
super(Adam, self).__init__(
"adam",
params,
lr,
betas,
eps,
weight_decay,
optim_bits,
args,
min_8bit_size,
percentile_clipping,
block_wise,
)
class Adam8bit(Optimizer2State):
def __init__(self, params, lr=1e-3, betas=(0.9, 0.999), eps=1e-8,
weight_decay=0, amsgrad=False, args=None,
min_8bit_size=4096, percentile_clipping=100, block_wise=True):
super(Adam8bit, self).__init__('adam', params, lr, betas, eps,
weight_decay, 8, args, min_8bit_size, percentile_clipping, block_wise)
def __init__(
self,
params,
lr=1e-3,
betas=(0.9, 0.999),
eps=1e-8,
weight_decay=0,
amsgrad=False,
args=None,
min_8bit_size=4096,
percentile_clipping=100,
block_wise=True,
):
super(Adam8bit, self).__init__(
"adam",
params,
lr,
betas,
eps,
weight_decay,
8,
args,
min_8bit_size,
percentile_clipping,
block_wise,
)
class Adam32bit(Optimizer2State):
def __init__(self, params, lr=1e-3, betas=(0.9, 0.999), eps=1e-8,
weight_decay=0, amsgrad=False, args=None,
min_8bit_size=4096, percentile_clipping=100, block_wise=True):
super(Adam32bit, self).__init__('adam', params, lr, betas, eps,
weight_decay, 32, args, min_8bit_size, percentile_clipping, block_wise)
def __init__(
self,
params,
lr=1e-3,
betas=(0.9, 0.999),
eps=1e-8,
weight_decay=0,
amsgrad=False,
args=None,
min_8bit_size=4096,
percentile_clipping=100,
block_wise=True,
):
super(Adam32bit, self).__init__(
"adam",
params,
lr,
betas,
eps,
weight_decay,
32,
args,
min_8bit_size,
percentile_clipping,
block_wise,
)
class AnalysisAdam(torch.optim.Optimizer):
......@@ -68,8 +136,8 @@ class AnalysisAdam(torch.optim.Optimizer):
eps=1e-8,
weight_decay=0,
amsgrad=False,
bnb_analysis='dynamic-blockwise',
savedir=None
bnb_analysis="dynamic-blockwise",
savedir=None,
):
defaults = dict(
lr=lr, betas=betas, eps=eps, weight_decay=weight_decay, amsgrad=amsgrad
......@@ -124,9 +192,13 @@ class AnalysisAdam(torch.optim.Optimizer):
state["exp_avg"] = torch.zeros_like(p_data_fp32)
# Exponential moving average of squared gradient values
state["exp_avg_sq"] = torch.zeros_like(p_data_fp32)
state['abserrors'] = torch.zeros((256, 256), device=p_data_fp32.device)
state['relerrors'] = torch.zeros((256, 256), device=p_data_fp32.device)
state['counts'] = torch.zeros((256, 256), device=p_data_fp32.device)
state["abserrors"] = torch.zeros(
(256, 256), device=p_data_fp32.device
)
state["relerrors"] = torch.zeros(
(256, 256), device=p_data_fp32.device
)
state["counts"] = torch.zeros((256, 256), device=p_data_fp32.device)
if amsgrad:
# Maintains max of all exp. moving avg. of sq. grad. values
state["max_exp_avg_sq"] = torch.zeros_like(p_data_fp32)
......@@ -143,9 +215,9 @@ class AnalysisAdam(torch.optim.Optimizer):
bias_correction1 = 1 - beta1 ** state["step"]
bias_correction2 = 1 - beta2 ** state["step"]
step_size = group["lr"] * math.sqrt(bias_correction2) / bias_correction1
e = state['abserrors']
rele = state['relerrors']
counts = state['counts']
e = state["abserrors"]
rele = state["relerrors"]
counts = state["counts"]
if group["weight_decay"] != 0:
p_data_fp32.add_(
......@@ -156,77 +228,84 @@ class AnalysisAdam(torch.optim.Optimizer):
if amsgrad:
max_exp_avg_sq = state["max_exp_avg_sq"]
# Decay the first and second moment running average coefficient
exp_avg.mul_(beta1).add_(grad, alpha=1 - beta1)
exp_avg_sq.mul_(beta2).addcmul_(grad, grad, value=1 - beta2)
denom = exp_avg_sq.sqrt().add_(group["eps"])
update_fp32 = exp_avg/denom
update_fp32 = exp_avg / denom
if p_data_fp32.numel() <= 8192 or p_data_fp32.numel() > 50000*1000:
if p_data_fp32.numel() <= 8192 or p_data_fp32.numel() > 50000 * 1000:
# embedding layer or too small
p_data_fp32 += -step_size*update_fp32
p_data_fp32 += -step_size * update_fp32
else:
if self.analysis == 'dynamic-blockwise':
if self.analysis == "dynamic-blockwise":
code1 = F.create_dynamic_map(signed=True).to(p.device)
code2 = F.create_dynamic_map(signed=False).to(p.device)
C1, S1 = F.quantize_blockwise(exp_avg, code=code1)
state1 = F.dequantize_blockwise(C1, S1)
C2, S2 = F.quantize_blockwise(exp_avg_sq, code=code2)
state2 = F.dequantize_blockwise(C2, S2)
elif self.analysis == 'dynamic':
elif self.analysis == "dynamic":
code1 = F.create_dynamic_map(signed=True).to(p.device)
code2 = F.create_dynamic_map(signed=False).to(p.device)
C1, S1 = F.quantize(exp_avg, code=code1)
state1 = F.dequantize(C1, S1)
C2, S2 = F.quantize(exp_avg_sq, code=code2)
state2 = F.dequantize(C2, S2)
elif self.analysis == 'linear':
elif self.analysis == "linear":
code1 = F.create_linear_map(signed=True).to(p.device)
code2 = F.create_linear_map(signed=False).to(p.device)
C1, S1 = F.quantize(exp_avg, code=code1)
state1 = F.dequantize(C1, S1)
C2, S2 = F.quantize(exp_avg_sq, code=code2)
state2 = F.dequantize(C2, S2)
elif self.analysis == 'quantile':
elif self.analysis == "quantile":
code1 = F.estimate_quantiles(exp_avg)
code2 = F.estimate_quantiles(exp_avg_sq)
C1 = F.quantize_no_absmax(exp_avg, code=code1)
state1 = F.dequantize_no_absmax(C1, code1)
C2 = F.quantize_no_absmax(exp_avg_sq, code=code2)
state2 = F.dequantize_no_absmax(C2, code2)
elif self.analysis == 'my-quantization-routine':
elif self.analysis == "my-quantization-routine":
pass
# 1. get code
# 2. quantize
# 3. dequantize
# Error will be calculated automatically!
else:
raise ValueError(f'Invalid analysis value: {self.analysis}!')
raise ValueError(f"Invalid analysis value: {self.analysis}!")
denom = state2.sqrt().add_(group["eps"])
update_8bit = state1/denom
update_8bit = state1 / denom
abserr = torch.abs(update_8bit-update_fp32)
relerr = abserr/torch.abs(update_fp32+1e-6)
abserr = torch.abs(update_8bit - update_fp32)
relerr = abserr / torch.abs(update_fp32 + 1e-6)
C1, C2 = C1.int(), C2.int()
F.histogram_scatter_add_2d(e, C1.int(), C2.int(), abserr)
F.histogram_scatter_add_2d(rele, C1.int(), C2.int(), relerr)
F.histogram_scatter_add_2d(counts, C1.int(), C2.int(), torch.ones_like(abserr))
p_data_fp32 += -step_size*update_fp32
F.histogram_scatter_add_2d(
counts, C1.int(), C2.int(), torch.ones_like(abserr)
)
p_data_fp32 += -step_size * update_fp32
if not dist.is_initialized() or dist.get_rank() == 0:
if self.savedir != '' and state['step'] % 100 == 0:
if not os.path.exists(self.savedir): os.makedirs(self.savedir)
shapestr = '_'.join([str(dim) for dim in p_data_fp32.shape])
pathe = os.path.join(self.savedir, f'{p_id}_{shapestr}_abserr.pkl')
pathrele = os.path.join(self.savedir, f'{p_id}_{shapestr}_relerr.pkl')
pathcounts = os.path.join(self.savedir, f'{p_id}_{shapestr}_counts.pkl')
if self.savedir != "" and state["step"] % 100 == 0:
if not os.path.exists(self.savedir):
os.makedirs(self.savedir)
shapestr = "_".join([str(dim) for dim in p_data_fp32.shape])
pathe = os.path.join(
self.savedir, f"{p_id}_{shapestr}_abserr.pkl"
)
pathrele = os.path.join(
self.savedir, f"{p_id}_{shapestr}_relerr.pkl"
)
pathcounts = os.path.join(
self.savedir, f"{p_id}_{shapestr}_counts.pkl"
)
torch.save(e, pathe)
torch.save(rele, pathrele)
torch.save(counts, pathcounts)
......@@ -234,6 +313,4 @@ class AnalysisAdam(torch.optim.Optimizer):
if p.data.dtype in {torch.float16, torch.bfloat16}:
p.data.copy_(p_data_fp32)
return loss
# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the MIT license found in the
# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the MIT license found in the
# LICENSE file in the root directory of this source tree.
from bitsandbytes.optim.optimizer import Optimizer2State
class AdamW(Optimizer2State):
def __init__(self, params, lr=1e-3, betas=(0.9, 0.999), eps=1e-8,
weight_decay=1e-2, amsgrad=False, optim_bits=32, args=None,
min_8bit_size=4096, percentile_clipping=100, block_wise=True):
super(AdamW, self).__init__('adam', params, lr, betas, eps,
weight_decay, optim_bits, args, min_8bit_size, percentile_clipping, block_wise)
def __init__(
self,
params,
lr=1e-3,
betas=(0.9, 0.999),
eps=1e-8,
weight_decay=1e-2,
amsgrad=False,
optim_bits=32,
args=None,
min_8bit_size=4096,
percentile_clipping=100,
block_wise=True,
):
super(AdamW, self).__init__(
"adam",
params,
lr,
betas,
eps,
weight_decay,
optim_bits,
args,
min_8bit_size,
percentile_clipping,
block_wise,
)
class AdamW8bit(Optimizer2State):
def __init__(self, params, lr=1e-3, betas=(0.9, 0.999), eps=1e-8,
weight_decay=1e-2, amsgrad=False, args=None,
min_8bit_size=4096, percentile_clipping=100, block_wise=True):
super(AdamW8bit, self).__init__('adam', params, lr, betas, eps,
weight_decay, 8, args, min_8bit_size, percentile_clipping, block_wise)
def __init__(
self,
params,
lr=1e-3,
betas=(0.9, 0.999),
eps=1e-8,
weight_decay=1e-2,
amsgrad=False,
args=None,
min_8bit_size=4096,
percentile_clipping=100,
block_wise=True,
):
super(AdamW8bit, self).__init__(
"adam",
params,
lr,
betas,
eps,
weight_decay,
8,
args,
min_8bit_size,
percentile_clipping,
block_wise,
)
class AdamW32bit(Optimizer2State):
def __init__(self, params, lr=1e-3, betas=(0.9, 0.999), eps=1e-8,
weight_decay=1e-2, amsgrad=False, args=None,
min_8bit_size=4096, percentile_clipping=100, block_wise=True):
super(AdamW32bit, self).__init__('adam', params, lr, betas, eps,
weight_decay, 32, args, min_8bit_size, percentile_clipping, block_wise)
class AdamW32bit(Optimizer2State):
def __init__(
self,
params,
lr=1e-3,
betas=(0.9, 0.999),
eps=1e-8,
weight_decay=1e-2,
amsgrad=False,
args=None,
min_8bit_size=4096,
percentile_clipping=100,
block_wise=True,
):
super(AdamW32bit, self).__init__(
"adam",
params,
lr,
betas,
eps,
weight_decay,
32,
args,
min_8bit_size,
percentile_clipping,
block_wise,
)
# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the MIT license found in the
# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the MIT license found in the
# LICENSE file in the root directory of this source tree.
from bitsandbytes.optim.optimizer import Optimizer2State
class LAMB(Optimizer2State):
def __init__(self, params, lr=1e-3, bias_correction=True, betas=(0.9, 0.999), eps=1e-8,
weight_decay=0, amsgrad=False, adam_w_mode=True, optim_bits=32, args=None,
min_8bit_size=4096, percentile_clipping=100, block_wise=False, max_unorm=1.0):
super(LAMB, self).__init__('lamb', params, lr, betas, eps,
weight_decay, optim_bits, args, min_8bit_size, percentile_clipping, block_wise, max_unorm=1.0)
def __init__(
self,
params,
lr=1e-3,
bias_correction=True,
betas=(0.9, 0.999),
eps=1e-8,
weight_decay=0,
amsgrad=False,
adam_w_mode=True,
optim_bits=32,
args=None,
min_8bit_size=4096,
percentile_clipping=100,
block_wise=False,
max_unorm=1.0,
):
super(LAMB, self).__init__(
"lamb",
params,
lr,
betas,
eps,
weight_decay,
optim_bits,
args,
min_8bit_size,
percentile_clipping,
block_wise,
max_unorm=1.0,
)
class LAMB8bit(Optimizer2State):
def __init__(self, params, lr=1e-3, bias_correction=True, betas=(0.9, 0.999), eps=1e-8,
weight_decay=0, amsgrad=False, adam_w_mode=True, args=None,
min_8bit_size=4096, percentile_clipping=100, block_wise=False, max_unorm=1.0):
super(LAMB8bit, self).__init__('lamb', params, lr, betas, eps,
weight_decay, 8, args, min_8bit_size, percentile_clipping, block_wise, max_unorm=1.0)
class LAMB32bit(Optimizer2State):
def __init__(self, params, lr=1e-3, bias_correction=True, betas=(0.9, 0.999), eps=1e-8,
weight_decay=0, amsgrad=False, adam_w_mode=True, args=None,
min_8bit_size=4096, percentile_clipping=100, block_wise=False, max_unorm=1.0):
super(LAMB32bit, self).__init__('lamb', params, lr, betas, eps,
weight_decay, 32, args, min_8bit_size, percentile_clipping, block_wise, max_unorm=1.0)
class LAMB8bit(Optimizer2State):
def __init__(
self,
params,
lr=1e-3,
bias_correction=True,
betas=(0.9, 0.999),
eps=1e-8,
weight_decay=0,
amsgrad=False,
adam_w_mode=True,
args=None,
min_8bit_size=4096,
percentile_clipping=100,
block_wise=False,
max_unorm=1.0,
):
super(LAMB8bit, self).__init__(
"lamb",
params,
lr,
betas,
eps,
weight_decay,
8,
args,
min_8bit_size,
percentile_clipping,
block_wise,
max_unorm=1.0,
)
class LAMB32bit(Optimizer2State):
def __init__(
self,
params,
lr=1e-3,
bias_correction=True,
betas=(0.9, 0.999),
eps=1e-8,
weight_decay=0,
amsgrad=False,
adam_w_mode=True,
args=None,
min_8bit_size=4096,
percentile_clipping=100,
block_wise=False,
max_unorm=1.0,
):
super(LAMB32bit, self).__init__(
"lamb",
params,
lr,
betas,
eps,
weight_decay,
32,
args,
min_8bit_size,
percentile_clipping,
block_wise,
max_unorm=1.0,
)
# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the MIT license found in the
# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the MIT license found in the
# LICENSE file in the root directory of this source tree.
import torch
from torch.optim import Optimizer
from bitsandbytes.optim.optimizer import Optimizer1State
class LARS(Optimizer1State):
def __init__(self, params, lr, momentum=0, dampening=0,
weight_decay=0, nesterov=False, optim_bits=32, args=None,
min_8bit_size=4096, percentile_clipping=100, max_unorm=0.02):
def __init__(
self,
params,
lr,
momentum=0,
dampening=0,
weight_decay=0,
nesterov=False,
optim_bits=32,
args=None,
min_8bit_size=4096,
percentile_clipping=100,
max_unorm=0.02,
):
if momentum == 0:
raise NotImplementedError(f'LARS without momentum is not supported!')
super(LARS, self).__init__('lars', params, lr, (momentum, dampening), 0.0,
weight_decay, optim_bits, args, min_8bit_size, percentile_clipping, max_unorm=max_unorm, block_wise=False)
raise NotImplementedError(f"LARS without momentum is not supported!")
super(LARS, self).__init__(
"lars",
params,
lr,
(momentum, dampening),
0.0,
weight_decay,
optim_bits,
args,
min_8bit_size,
percentile_clipping,
max_unorm=max_unorm,
block_wise=False,
)
class LARS8bit(Optimizer1State):
def __init__(self, params, lr, momentum=0, dampening=0,
weight_decay=0, nesterov=False, args=None,
min_8bit_size=4096, percentile_clipping=100, max_unorm=0.02):
def __init__(
self,
params,
lr,
momentum=0,
dampening=0,
weight_decay=0,
nesterov=False,
args=None,
min_8bit_size=4096,
percentile_clipping=100,
max_unorm=0.02,
):
if momentum == 0:
raise NotImplementedError(f'LARS without momentum is not supported!')
super(LARS8bit, self).__init__('lars', params, lr, (momentum, dampening), 0.0,
weight_decay, 8, args, min_8bit_size, percentile_clipping, max_unorm=max_unorm, block_wise=False)
raise NotImplementedError(f"LARS without momentum is not supported!")
super(LARS8bit, self).__init__(
"lars",
params,
lr,
(momentum, dampening),
0.0,
weight_decay,
8,
args,
min_8bit_size,
percentile_clipping,
max_unorm=max_unorm,
block_wise=False,
)
class LARS32bit(Optimizer1State):
def __init__(self, params, lr, momentum=0, dampening=0,
weight_decay=0, nesterov=False, args=None,
min_8bit_size=4096, percentile_clipping=100, max_unorm=0.02):
def __init__(
self,
params,
lr,
momentum=0,
dampening=0,
weight_decay=0,
nesterov=False,
args=None,
min_8bit_size=4096,
percentile_clipping=100,
max_unorm=0.02,
):
if momentum == 0:
raise NotImplementedError(f'LARS without momentum is not supported!')
super(LARS32bit, self).__init__('lars', params, lr, (momentum, dampening), 0.0,
weight_decay, 32, args, min_8bit_size, percentile_clipping, max_unorm=max_unorm, block_wise=False)
raise NotImplementedError(f"LARS without momentum is not supported!")
super(LARS32bit, self).__init__(
"lars",
params,
lr,
(momentum, dampening),
0.0,
weight_decay,
32,
args,
min_8bit_size,
percentile_clipping,
max_unorm=max_unorm,
block_wise=False,
)
class PytorchLARS(Optimizer):
def __init__(self, params, lr=0.01, momentum=0, dampening=0,
weight_decay=0, nesterov=False, max_unorm=0.02):
def __init__(
self,
params,
lr=0.01,
momentum=0,
dampening=0,
weight_decay=0,
nesterov=False,
max_unorm=0.02,
):
if lr < 0.0:
raise ValueError("Invalid learning rate: {}".format(lr))
if momentum < 0.0:
......@@ -45,8 +123,14 @@ class PytorchLARS(Optimizer):
if weight_decay < 0.0:
raise ValueError("Invalid weight_decay value: {}".format(weight_decay))
defaults = dict(lr=lr, momentum=momentum, dampening=dampening,
weight_decay=weight_decay, nesterov=nesterov, max_unorm=max_unorm)
defaults = dict(
lr=lr,
momentum=momentum,
dampening=dampening,
weight_decay=weight_decay,
nesterov=nesterov,
max_unorm=max_unorm,
)
if nesterov and (momentum <= 0 or dampening != 0):
raise ValueError("Nesterov momentum requires a momentum and zero dampening")
super(PytorchLARS, self).__init__(params, defaults)
......@@ -54,7 +138,7 @@ class PytorchLARS(Optimizer):
def __setstate__(self, state):
super(PytorchLARS, self).__setstate__(state)
for group in self.param_groups:
group.setdefault('nesterov', False)
group.setdefault("nesterov", False)
@torch.no_grad()
def step(self, closure=None):
......@@ -73,15 +157,16 @@ class PytorchLARS(Optimizer):
params_with_grad = []
d_p_list = []
momentum_buffer_list = []
weight_decay = group['weight_decay']
momentum = group['momentum']
dampening = group['dampening']
nesterov = group['nesterov']
max_unorm = group['max_unorm']
lr = group['lr']
weight_decay = group["weight_decay"]
momentum = group["momentum"]
dampening = group["dampening"]
nesterov = group["nesterov"]
max_unorm = group["max_unorm"]
lr = group["lr"]
for p in group['params']:
if p.grad is None: continue
for p in group["params"]:
if p.grad is None:
continue
state = self.state[p]
d_p = p.grad
......@@ -89,16 +174,16 @@ class PytorchLARS(Optimizer):
d_p = d_p.add(param, alpha=weight_decay)
if momentum != 0:
buf = state.get('momentum_buffer', None)
buf = state.get("momentum_buffer", None)
if buf is None:
buf = torch.clone(d_p).detach()
state['momentum_buffer']= buf
state["momentum_buffer"] = buf
else:
buf.mul_(momentum).add_(d_p, alpha=1 - dampening)
if nesterov:
update = d_p + buf*momentum
update = d_p + buf * momentum
else:
update = buf
......@@ -107,9 +192,9 @@ class PytorchLARS(Optimizer):
assert p.dtype == torch.float32
pnorm = torch.norm(p.detach())
unorm = torch.norm(update)
if unorm > max_unorm*pnorm:
update_scale = max_unorm*pnorm/unorm
if unorm > max_unorm * pnorm:
update_scale = max_unorm * pnorm / unorm
p.add_(update, alpha=-lr*update_scale)
p.add_(update, alpha=-lr * update_scale)
return loss
This diff is collapsed.
# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the MIT license found in the
# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the MIT license found in the
# LICENSE file in the root directory of this source tree.
from bitsandbytes.optim.optimizer import Optimizer1State
class RMSprop(Optimizer1State):
def __init__(self, params, lr=1e-2, alpha=0.99, eps=1e-8, weight_decay=0, momentum=0, centered=False, optim_bits=32, args=None,
min_8bit_size=4096, percentile_clipping=100, block_wise=True):
def __init__(
self,
params,
lr=1e-2,
alpha=0.99,
eps=1e-8,
weight_decay=0,
momentum=0,
centered=False,
optim_bits=32,
args=None,
min_8bit_size=4096,
percentile_clipping=100,
block_wise=True,
):
if alpha == 0:
raise NotImplementedError(f'RMSprop with alpha==0.0 is not supported!')
raise NotImplementedError(f"RMSprop with alpha==0.0 is not supported!")
if centered:
raise NotImplementedError(f'Centered RMSprop is not supported!')
super(RMSprop, self).__init__('rmsprop', params, lr, (alpha, momentum), eps,
weight_decay, optim_bits, args, min_8bit_size, percentile_clipping, block_wise)
raise NotImplementedError(f"Centered RMSprop is not supported!")
super(RMSprop, self).__init__(
"rmsprop",
params,
lr,
(alpha, momentum),
eps,
weight_decay,
optim_bits,
args,
min_8bit_size,
percentile_clipping,
block_wise,
)
class RMSprop8bit(Optimizer1State):
def __init__(self, params, lr=1e-2, alpha=0.99, eps=1e-8, weight_decay=0, momentum=0, centered=False, args=None,
min_8bit_size=4096, percentile_clipping=100, block_wise=True):
def __init__(
self,
params,
lr=1e-2,
alpha=0.99,
eps=1e-8,
weight_decay=0,
momentum=0,
centered=False,
args=None,
min_8bit_size=4096,
percentile_clipping=100,
block_wise=True,
):
if alpha == 0:
raise NotImplementedError(f'RMSprop with alpha==0.0 is not supported!')
raise NotImplementedError(f"RMSprop with alpha==0.0 is not supported!")
if centered:
raise NotImplementedError(f'Centered RMSprop is not supported!')
super(RMSprop8bit, self).__init__('rmsprop', params, lr, (alpha, momentum), eps,
weight_decay, 8, args, min_8bit_size, percentile_clipping, block_wise)
raise NotImplementedError(f"Centered RMSprop is not supported!")
super(RMSprop8bit, self).__init__(
"rmsprop",
params,
lr,
(alpha, momentum),
eps,
weight_decay,
8,
args,
min_8bit_size,
percentile_clipping,
block_wise,
)
class RMSprop32bit(Optimizer1State):
def __init__(self, params, lr=1e-2, alpha=0.99, eps=1e-8, weight_decay=0, momentum=0, centered=False, args=None,
min_8bit_size=4096, percentile_clipping=100, block_wise=True):
def __init__(
self,
params,
lr=1e-2,
alpha=0.99,
eps=1e-8,
weight_decay=0,
momentum=0,
centered=False,
args=None,
min_8bit_size=4096,
percentile_clipping=100,
block_wise=True,
):
if alpha == 0:
raise NotImplementedError(f'RMSprop with alpha==0.0 is not supported!')
raise NotImplementedError(f"RMSprop with alpha==0.0 is not supported!")
if centered:
raise NotImplementedError(f'Centered RMSprop is not supported!')
super(RMSprop32bit, self).__init__('rmsprop', params, lr, (alpha, momentum), eps,
weight_decay, 32, args, min_8bit_size, percentile_clipping, block_wise)
raise NotImplementedError(f"Centered RMSprop is not supported!")
super(RMSprop32bit, self).__init__(
"rmsprop",
params,
lr,
(alpha, momentum),
eps,
weight_decay,
32,
args,
min_8bit_size,
percentile_clipping,
block_wise,
)
# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the MIT license found in the
# Copyright (c) Facebook, Inc. and its affiliates.
#
# This source code is licensed under the MIT license found in the
# LICENSE file in the root directory of this source tree.
from bitsandbytes.optim.optimizer import Optimizer1State
class SGD(Optimizer1State):
def __init__(self, params, lr, momentum=0, dampening=0,
weight_decay=0, nesterov=False, optim_bits=32, args=None,
min_8bit_size=4096, percentile_clipping=100, block_wise=True):
def __init__(
self,
params,
lr,
momentum=0,
dampening=0,
weight_decay=0,
nesterov=False,
optim_bits=32,
args=None,
min_8bit_size=4096,
percentile_clipping=100,
block_wise=True,
):
if momentum == 0:
raise NotImplementedError(f'SGD without momentum is not supported!')
super(SGD, self).__init__('momentum', params, lr, (momentum, dampening), 0.0,
weight_decay, optim_bits, args, min_8bit_size, percentile_clipping, block_wise)
raise NotImplementedError(f"SGD without momentum is not supported!")
super(SGD, self).__init__(
"momentum",
params,
lr,
(momentum, dampening),
0.0,
weight_decay,
optim_bits,
args,
min_8bit_size,
percentile_clipping,
block_wise,
)
class SGD8bit(Optimizer1State):
def __init__(self, params, lr, momentum=0, dampening=0,
weight_decay=0, nesterov=False, args=None,
min_8bit_size=4096, percentile_clipping=100, block_wise=True):
def __init__(
self,
params,
lr,
momentum=0,
dampening=0,
weight_decay=0,
nesterov=False,
args=None,
min_8bit_size=4096,
percentile_clipping=100,
block_wise=True,
):
if momentum == 0:
raise NotImplementedError(f'SGD without momentum is not supported!')
super(SGD8bit, self).__init__('momentum', params, lr, (momentum, dampening), 0.0,
weight_decay, 8, args, min_8bit_size, percentile_clipping, block_wise)
raise NotImplementedError(f"SGD without momentum is not supported!")
super(SGD8bit, self).__init__(
"momentum",
params,
lr,
(momentum, dampening),
0.0,
weight_decay,
8,
args,
min_8bit_size,
percentile_clipping,
block_wise,
)
class SGD32bit(Optimizer1State):
def __init__(self, params, lr, momentum=0, dampening=0,
weight_decay=0, nesterov=False, args=None,
min_8bit_size=4096, percentile_clipping=100, block_wise=True):
def __init__(
self,
params,
lr,
momentum=0,
dampening=0,
weight_decay=0,
nesterov=False,
args=None,
min_8bit_size=4096,
percentile_clipping=100,
block_wise=True,
):
if momentum == 0:
raise NotImplementedError(f'SGD without momentum is not supported!')
super(SGD32bit, self).__init__('momentum', params, lr, (momentum, dampening), 0.0,
weight_decay, 32, args, min_8bit_size, percentile_clipping, block_wise)
raise NotImplementedError(f"SGD without momentum is not supported!")
super(SGD32bit, self).__init__(
"momentum",
params,
lr,
(momentum, dampening),
0.0,
weight_decay,
32,
args,
min_8bit_size,
percentile_clipping,
block_wise,
)
import sys
def print_err(s: str) -> None:
print(s, file=sys.stderr)
def warn_of_missing_prerequisite(s: str) -> None:
print_err('WARNING, missing pre-requisite: ' + s)
print_err("WARNING, missing pre-requisite: " + s)
from itertools import product
import torch
import bitsandbytes as bnb
import bitsandbytes.functional as F
from itertools import product
def test_igemmlt(dim1, dim2, dim3, dim4, dims, ldb):
k = 25
for i in range(k):
if dims == 2:
A = torch.randint(-128, 127, size=(dim1, dim3), device='cuda').to(torch.int8)
A = torch.randint(-128, 127, size=(dim1, dim3), device="cuda").to(
torch.int8
)
elif dims == 3:
A = torch.randint(-128, 127, size=(dim1, dim2, dim3), device='cuda').to(torch.int8)
B = torch.randint(-128, 127, size=(dim4, dim3), device='cuda').to(torch.int8)
A = torch.randint(-128, 127, size=(dim1, dim2, dim3), device="cuda").to(
torch.int8
)
B = torch.randint(-128, 127, size=(dim4, dim3), device="cuda").to(torch.int8)
C1 = torch.matmul(A.float(), B.t().float())
A2, SA = F.transform(A, 'col32')
B2, SB = F.transform(B, 'colx')
A2, SA = F.transform(A, "col32")
B2, SB = F.transform(B, "colx")
if dims == 2:
C2, SC = F.transform(torch.zeros(A.shape[0], B.shape[0], dtype=torch.int32, device='cuda'), 'col32')
C2, SC = F.transform(
torch.zeros(A.shape[0], B.shape[0], dtype=torch.int32, device="cuda"),
"col32",
)
else:
C2, SC = F.transform(torch.zeros(A.shape[0], A.shape[1], B.shape[0], dtype=torch.int32, device='cuda'), 'col32')
C2, SC = F.transform(
torch.zeros(
A.shape[0], A.shape[1], B.shape[0], dtype=torch.int32, device="cuda"
),
"col32",
)
F.igemmlt(A2, B2, C2, SA, SB, SC)
C3, S = F.transform(C2, 'row', state=SC)
#torch.testing.assert_allclose(C1, C3.float())
#print(C1)
#print(C2)
#print(C3)
C3, S = F.transform(C2, "row", state=SC)
# torch.testing.assert_allclose(C1, C3.float())
# print(C1)
# print(C2)
# print(C3)
allclose = torch.allclose(C1, C3.float())
if allclose:
print(C1)
......@@ -33,29 +47,29 @@ def test_igemmlt(dim1, dim2, dim3, dim4, dims, ldb):
print(C3)
## transposed
#A = torch.randint(-128, 127, size=(dim4, dim3), device='cuda').to(torch.int8)
#if dims == 2:
# A = torch.randint(-128, 127, size=(dim4, dim3), device='cuda').to(torch.int8)
# if dims == 2:
# B = torch.randint(-128, 127, size=(dim1, dim3), device='cuda').to(torch.int8)
# C1 = torch.matmul(A.float(), B.float().t())
#elif dims == 3:
# elif dims == 3:
# B = torch.randint(-128, 127, size=(dim1, dim2, dim3), device='cuda').to(torch.int8)
# C1 = torch.matmul(B.float(), A.t().float())
# C1 = C1.permute([2, 0, 1])
#A2, SA = F.transform(A, 'col32')
#B2, SB = F.transform(B, 'colx')
#if dims == 2:
# A2, SA = F.transform(A, 'col32')
# B2, SB = F.transform(B, 'colx')
# if dims == 2:
# C2, SC = F.transform(torch.zeros(A.shape[0], B.shape[0], dtype=torch.int32, device='cuda'), 'col32')
#else:
# else:
# C2 = torch.zeros(A.shape[0], B.shape[0], B.shape[1], dtype=torch.int32, device='cuda')
# state = (C2.shape, 'row', A.shape[0])
# C2, SC = F.transform(C2, 'col32', state=state)
#F.igemmlt(A2, B2, C2, SA, SB, SC)
#C3, S = F.transform(C2, 'row', state=SC, ld=[0])
#torch.testing.assert_allclose(C1, C3.float())
# F.igemmlt(A2, B2, C2, SA, SB, SC)
# C3, S = F.transform(C2, 'row', state=SC, ld=[0])
# torch.testing.assert_allclose(C1, C3.float())
## weight update
#if dims == 3:
# if dims == 3:
# A = torch.randint(-128, 127, size=(dim1, dim2, dim3), device='cuda').to(torch.int8)
# B = torch.randint(-128, 127, size=(dim1, dim2, dim4), device='cuda').to(torch.int8)
# C1 = torch.matmul(B.view(-1, B.shape[-1]).t().float(), A.view(-1, A.shape[-1]).float())
......@@ -73,18 +87,18 @@ dims = (2, 3)
ldb = [0]
n = 2
dim1 = torch.randint(1,256, size=(n,)).tolist()
dim2 = torch.randint(32,512, size=(n,)).tolist()
dim3 = torch.randint(32,1024, size=(n,)).tolist()
dim4 = torch.randint(32,1024, size=(n,)).tolist()
values = list(product(dim1,dim2,dim3,dim4,dims, ldb))
dim1 = torch.randint(1, 256, size=(n,)).tolist()
dim2 = torch.randint(32, 512, size=(n,)).tolist()
dim3 = torch.randint(32, 1024, size=(n,)).tolist()
dim4 = torch.randint(32, 1024, size=(n,)).tolist()
values = list(product(dim1, dim2, dim3, dim4, dims, ldb))
for ldb in range(32, 4096, 32):
#for ldb in [None]:
# for ldb in [None]:
val = test_igemmlt(2, 2, 2, 2, 2, ldb)
if val:
print(val, ldb)
else:
print('nope', ldb)
#for val in values:
#test_igemmlt(*val)
print("nope", ldb)
# for val in values:
# test_igemmlt(*val)
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